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An anti-surge and durable high-efficiency mining fan

A durable, anti-surge technology, applied in mechanical equipment, engine control, machine/engine, etc., can solve problems such as fans not running normally, achieve effective regulation and avoid surge

Active Publication Date: 2021-07-02
山东恒洋自动化科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So when the surge occurs, the fan can hardly run normally

Method used

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  • An anti-surge and durable high-efficiency mining fan
  • An anti-surge and durable high-efficiency mining fan
  • An anti-surge and durable high-efficiency mining fan

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Such as figure 1 As shown, an anti-surge durable high-efficiency mine fan according to the present invention includes a collector part, a main machine part, a blade fin part, a first diffuser and a second diffuser, and the collector part, The main engine part, the blade wing part, the first diffuser and the second diffuser are coaxially installed together from front to rear; a junction box is arranged on the upper part of the main engine part, and a driving motor is installed in the main engine part through a motor bracket; the blade fin The part includes a hollow hub shell with an inverted "T" shape in cross section. The hub shell includes a large-diameter part and a small-diameter part; a motor shaft insertion hole is opened on the front end of the large-diameter part, and the drive motor The motor shaft is inserted and fixed in the motor shaft insertion hole. Such as figure 2 As shown, a plurality of blade-fin insertion holes are annularly opened on the outer circ...

Embodiment 2

[0067] In this embodiment, an air volume adjusting device is provided on the rear end surface of the outer cylinder of the second diffuser, and the air volume adjusting device includes a front air net and a rear air net.

[0068] Such as Figure 10 As shown, the front air grid includes a front outer ring grid and a front inner ring grid, the front outer ring grid and the front inner ring grid are coaxial and coplanar, and the front outer ring grid and the front inner ring grid The frames are connected and fixed as a whole by four network frame connecting rods; a mesh inner air filter is set in the front inner ring frame, and several straight air filters are radially arrayed between the front outer ring frame and the front inner ring frame. Striped front fairing.

[0069] Such as Figure 11 As shown, the rear air grid includes a rear outer ring network frame and a rear inner ring network frame, the rear outer ring network frame and the rear inner ring network frame are coaxia...

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Abstract

An anti-surge durable high-efficiency mine fan belongs to the field of mine fan equipment. It is characterized in that the collector part, the main part, the wing part, the first diffuser and the second diffuser are coaxially installed together from front to back; a junction box is arranged on the upper part of the main part, and the The motor bracket is equipped with a drive motor; the blade wing part includes a hollow hub shell with an inverted "T" shape in cross section, and the hub shell includes a large diameter part and a small diameter part; a motor is set on the front end of the large diameter part Shaft insertion hole, the motor shaft of the driving motor is inserted and fixed in the motor shaft insertion hole, several blade fin insertion holes are ring-shaped on the outer circumference of the large diameter part, and radially installed in each blade fin insertion hole A plurality of blade fins; an automatic blade angle adjustment device is arranged in the small diameter part. The invention can prevent the fan from surging during operation and can adjust after the surge occurs.

Description

technical field [0001] The invention belongs to the field of mine fan equipment, in particular to an anti-surge durable high-efficiency mine fan. Background technique [0002] The so-called surge means that when the fan with the "hump"-shaped Q-H performance curve works to the left of the critical point of the curve, that is, when it works in the unstable region, the flow rate and energy head of the fan will undergo unstable periodic and repeated changes in an instant. The phenomenon. The maximum energy head produced by the fan will be less than the resistance loss in the pipeline, and the fluid will start to flow back in the opposite direction, and flow back into the fan from the pipeline (negative flow). Since the fan continues to run, when the pressure in the pipeline drops, the fan will The output flow is started again, as long as the flow required by the outside world remains less than the critical point flow, the above process will repeat itself, that is, surge will o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D29/66F04D29/36F04D29/54F04D27/02F04D19/00F04D25/08F16H1/20F04D29/70
CPCF04D19/002F04D25/08F04D27/0246F04D29/362F04D29/541F04D29/666F04D29/703F05D2270/65F16H1/20
Inventor 吕金磊孔军勇邵在平
Owner 山东恒洋自动化科技有限公司